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Rapid and sensitive PCR detection of Vibrio penaeicida, the putative etiological agent of syndrome 93 in New Caledonia ArchiMer
Saulnier, Denis; Avarre, Jean-christophe; Le Moullac, Gilles; Ansquer, Dominique; Levy, Peva; Vonau, Vincent.
Experimental infections of Penaeus (Litopenaeus) stylirostris were performed with a Vibrio penaeicida strain (AM101) isolated in New Caledonia from Syndrome 93 diseased shrimp. Cumulative mortalities resulting from intramuscular injection or immersion of shrimp in bacterial suspensions demonstrated high virulence for this bacterial strain and suggested that V. penaeicida could be the etiological agent of Syndrome 93. The median lethal dose (LD50) for AM101 was 1.3 x 104 CFU (colony forming units) ml-1 by immersion and less than 5 CFU shrimp-1 by intramuscular challenge, with mortality outbreaks at 48 and 22 h after challenge, respectively. A polymerase chain reaction (PCR) detection assay using a primer set designed from the 16S ribosomal RNA gene of V....
Tipo: Text Palavras-chave: Small subunit rDNA gene; Penaeus (Litopenaeus) stylirostris; Vibriosis; Shrimp disease; PCR diagnosis; Vibrio penaeicida; Syndrome 93.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-4436.pdf
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